International Journal of Polymer Analysis and Characterization最新文献_第8页

Preparation and characterization of novel transparent and foldable polymers modified with Cr(III), Co(II), Ni(II), and Cu(II) complexes Cr(III)， Co(II)， Ni(II)和Cu(II)配合物修饰的新型透明可折叠聚合物的制备和表征

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2023-04-01 DOI: 10.1080/1023666X.2023.2197720

Melike Çağlayan , Nurşen Sarı , Bekir Sarı

{"title":"Preparation and characterization of novel transparent and foldable polymers modified with Cr(III), Co(II), Ni(II), and Cu(II) complexes","authors":"Melike Çağlayan , Nurşen Sarı , Bekir Sarı","doi":"10.1080/1023666X.2023.2197720","DOIUrl":"https://doi.org/10.1080/1023666X.2023.2197720","url":null,"abstract":"<div><p>The properties of films prepared from polystyrene (PS), poly(methyl methacrylate) (PMMA), and polystyrene (PS)/poly(methyl methacrylate) (PMMA) blends and composite films prepared with metal ion-centered complexes were compared. New complexes of Cr(III), Co(II), Ni(II), and Cu(II) prepared according to the template were synthesized from ligand L (4-hydroxy-<em>N</em>-[2-[(4-hydroxybenzoyl)amino]ethyl]benzamide) prepared by condensation of 4-hydroxybenzoic acid and ethylenediamine. Structural analysis of ligands and complexes were determined by LC-MS, <sup>1</sup>H-NMR, FTIR, UV-Vis, and XRD. The conductivities and magnetic susceptibility of novel complexes were measured. Morphological properties of the transparent films by SEM and AFM, their thermal stabilities by TGA, and their optical properties by refractometry were characterized. Original composite films of PS, PMMA, and PS/PMMA blend modified with novel complexes were obtained as thermally stable, transparent, and foldable composite films with permanent colors.</p></div>","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49880430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural and electrochemical properties of montmorillonite-poly(ethylene oxide) intercalated nanocomposites for lithium-ion batteries 锂离子电池用蒙脱石-聚环氧乙烷嵌层纳米复合材料的结构与电化学性能

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2023-04-01 DOI: 10.1080/1023666X.2023.2207867

A.K. Nath , B. Sharma , B.J. Borah , N. Deka , J. Hazarika

{"title":"Structural and electrochemical properties of montmorillonite-poly(ethylene oxide) intercalated nanocomposites for lithium-ion batteries","authors":"A.K. Nath , B. Sharma , B.J. Borah , N. Deka , J. Hazarika","doi":"10.1080/1023666X.2023.2207867","DOIUrl":"https://doi.org/10.1080/1023666X.2023.2207867","url":null,"abstract":"<div><p>Poly(ethylene oxide) has been intercalated inside the interlayer galleries of montmorillonite clay and the electrochemical properties of the nanocomposite have been investigated. Interlayer spacing and clay gallery width increase with increasing MMT concentration confirming intercalation of PEO into MMT as observed from XRD results. The fraction of free anions as calculated from FTIR, increases with increasing clay content and remains constant beyond 7.5 wt. % of clay content. Ionic conductivity of the order of 10<sup>−4</sup> Scm<sup>−1</sup> has been obtained in the case of MMT based electrolytes. The initial increase of conductivity with increasing MMT content can be attributed to the increase fraction of free ions which eventually increases ionic conductivity. After 7.5 wt. % of MMT loading ionic conductivity decreases due to the high viscosity of MMT. Interfacial stability results show that passivation takes place very slowly in MMT based electrolytes. Dielectric properties show that at high frequency relaxation takes place due to the segmental motion of polymer chains and it proves the hopping of ions.</p></div>","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49880426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Monte Carlo simulations of proton irradiation effects on PTFE, KEVLAR, EFTE, DYNEEMA, and NOMEX polymeric materials used in astronaut space suits 质子辐照对宇航员航天服中使用的PTFE、KEVLAR、EFTE、DYNEEMA和NOMEX聚合物材料的影响的蒙特卡罗模拟

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2023-04-01 DOI: 10.1080/1023666X.2023.2180021

Turgay Korkut , Hatun Korkut

{"title":"Monte Carlo simulations of proton irradiation effects on PTFE, KEVLAR, EFTE, DYNEEMA, and NOMEX polymeric materials used in astronaut space suits","authors":"Turgay Korkut , Hatun Korkut","doi":"10.1080/1023666X.2023.2180021","DOIUrl":"https://doi.org/10.1080/1023666X.2023.2180021","url":null,"abstract":"<div><p>Astronauts suffer from natural space radiation as high-energetic protons, heavy ions, and secondary particles produced in collisions. Galactic cosmic rays and solar particle events are the basic parts of space radiation spectra. Wears and accessories designs for use by astronauts aim to minimize these deleterious effects of this environment. Polymeric materials are preferred in astronaut suits because they are lightweight, inexpensive, and durable. Teflon, KEVLAR, ethylene tetrafluoroethylene, DYNEEMA, and NOMEX polymeric astronaut wear materials were exposed to high energetic proton irradiations by the use of Monte Carlo simulation tools SRIM-2013 and FLUKA 2011.1. Proton energies are applied as 1, 2, and 3 GeV known as in order of space radiation magnitude. Besides, displacement per atom calculations were done and results were discussed in the plane of structural changes in the given polymeric materials. After interacting with protons with 1, 2, and 3 GeV energies, the material with the lowest Displacement per atom value among the five studied materials is DYNEEMA with values of 1.01E − 25, 9.96E − 26, and 1.00E − 25, respectively. Again, among the materials studied for these three proton energies, DYNEEMA has the highest electronic stopping power values are, respectively, 2.11E − 03, 2.10E − 03, and 2.31E − 03. DYNEEMA has the highest nuclear stopping power values as 2.23E − 07, 1.53E − 07, and 4.27E − 07, respectively.</p></div>","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49879863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation and optimization of supported Ziegler–Natta catalyst preparation based on AI approach coupled with genetic algorithm 基于人工智能和遗传算法的负载型Ziegler-Natta催化剂制备模拟与优化

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2023-04-01 DOI: 10.1080/1023666X.2023.2206509

Seyed Amin Mirmohammadi , Amin Hedayati Moghaddam , Naeimeh Bahri-Laleh

引用次数: 1

Effects of poly(o-phenylenediamine) functionalized SiC on the corrosion protection ability of neat polyurethane coating system in the marine environment 聚邻苯二胺官能化碳化硅对海洋环境中整齐聚氨酯涂层体系防腐性能的影响

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2023-02-01 DOI: 10.1080/1023666X.2022.2155770

S. P Vinodhini , Joseph Raj Xavier

{"title":"Effects of poly(o-phenylenediamine) functionalized SiC on the corrosion protection ability of neat polyurethane coating system in the marine environment","authors":"S. P Vinodhini , Joseph Raj Xavier","doi":"10.1080/1023666X.2022.2155770","DOIUrl":"https://doi.org/10.1080/1023666X.2022.2155770","url":null,"abstract":"<div><p>A novel nanocomposite consisting of polyurethane (PU), poly(o-phenylenediamine) (PoPD), and silicon carbide (SiC) nanoparticles was investigated for its application in marine environment through electrochemical techniques. The PoPD/SiC nanofillers were characterized by TGA, XRD, SEM/EDX, and TEM analyses. The anticorrosion and mechanical properties of different coating formulation in marine environment were evaluated by electrochemical impedance spectroscopy (EIS) and scanning electrochemical microscopy (SECM). It was also found that the coating resistance of PU-PoPD/SiC nanocomposite was over 41 times higher than that of the PU coating. The PU-PoPD/SiC coatings on the brass showed low current of 1.9 I/nA due to copper dissolution and 6.8 I/nA due to zinc dissolution because of the well distribution of PoPD/SiC nanofiller in PU coating. The analyses of the resultant degradation products by SEM/EDX and XRD techniques confirmed the presence of Si which has a major role in protecting the brass surface against corrosion. Results showed that the PU composite with 2 wt.% PoPD/SiC hybrid nanofillers had outstanding coating performance. This nanocomposite demonstrated improved corrosion protection. As a result, the developed PU-PoPD/SiC nanocomposite has exceptional adhesion strength and anticorrosion properties and might be exploited to develop next-generation anticorrosive coatings.</p></div>","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49870795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Polymer-based wearable nano-composite sensors: a review 聚合物基可穿戴纳米复合传感器研究进展

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2023-02-01 DOI: 10.1080/1023666X.2022.2161737

Aashish Tuli , Amrinder Pal Singh

{"title":"Polymer-based wearable nano-composite sensors: a review","authors":"Aashish Tuli , Amrinder Pal Singh","doi":"10.1080/1023666X.2022.2161737","DOIUrl":"https://doi.org/10.1080/1023666X.2022.2161737","url":null,"abstract":"<div><p>The demand for stretchable, skin-mountable, and wearable strain sensors is burgeoning because they are required for several budding applications in various emerging fields, such as health monitoring, human-machine interfaces, wearable electronics, soft robotics, human motion detection, virtual reality (VR), and so forth. Recently, strain sensors based on composite materials comprising stretchable elastomer and conductive nano-filler have gathered attention on account of their ample flexibility, record stretchability, excellent durability, customizable characteristics for strain-sensing, and simpler fabrication techniques. This quality write-up discusses current developments in the field of flexible strain sensors (FSSs). We effectively summarized how advanced mechanisms, such as crack propagation, disconnection, and tunneling effect, which are quite different from traditional strain sensing techniques, are used to develop FSS. Various factors and their effects that need to be kept in mind while developing high-performance, high-quality FSSs are also debated. The performance of recently reported FSSs is comprehensively discussed, and the huge potential that FSSs hold has been comprehensively reviewed in this survey.</p></div>","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49870796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Experimental study of the influence of the epoxy resin modification with additives on the contact angle 添加剂改性环氧树脂对接触角影响的实验研究

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2023-02-01 DOI: 10.1080/1023666X.2022.2164826

Sergey Savotchenko , Ekaterina Kovaleva

{"title":"Experimental study of the influence of the epoxy resin modification with additives on the contact angle","authors":"Sergey Savotchenko , Ekaterina Kovaleva","doi":"10.1080/1023666X.2022.2164826","DOIUrl":"https://doi.org/10.1080/1023666X.2022.2164826","url":null,"abstract":"<div><p>Influence of concentration of introduction the different industrial organic additives into the epoxy resin on wetting contact angle is studied experimentally. Epoxy resin ED-20 is modified with small concentrations of polydimethyl siloxane, OH-polymer silicone rubber, monoglycidyl ether of butyl cellosolve (Laproxide 301B), tris(2-chloroethyl) phosphate. The importance of these studies is related to the need to improve the adhesive properties of repair compounds based on epoxy resin, which are associated with the value of the contact angle. The contact angle of the resin drop is measured for glass, metal, asbestos cement, and concrete surfaces. The effect of the mass fraction of additives on the contact angle is more pronounced on smooth surfaces of dense materials, and less pronounced on rough surfaces of porous materials. It is observed that all dependences of contact angle on the mass fraction of additives in the range of 0.5–2% wt are linear. The linear equation <span><math><mi>θ</mi><mo>=</mo><mi>s</mi><mo>⋅</mo><mi>c</mi><mo>+</mo><msub><mrow><mi>θ</mi></mrow><mrow><mn>0</mn></mrow></msub></math></span> describing the contact angle <em>θ</em> dependence on the mass fraction <em>c</em> of additives, which sufficiently fitting the experimental data with calculated coefficients <em>s</em> and <em>θ</em><sub>0</sub>, is found.</p></div>","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49870794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced thermal and dielectric properties of porous thin films of graphene, conjugated terpolymer of pyrene/thiophene/heptaldehyde, and polyvinylidene difluoride alloys 石墨烯多孔薄膜、芘/噻吩/七醛共轭三元共聚物和聚偏二氟乙烯合金的热性能和介电性能增强

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2023-02-01 DOI: 10.1080/1023666X.2022.2158581

Kavitha Narayanasamy , Prabukanthan Peethambaram , Debmalya Roy , Uthayakumar Sivaperumal , Dinakaran Kannaiyan

{"title":"Enhanced thermal and dielectric properties of porous thin films of graphene, conjugated terpolymer of pyrene/thiophene/heptaldehyde, and polyvinylidene difluoride alloys","authors":"Kavitha Narayanasamy , Prabukanthan Peethambaram , Debmalya Roy , Uthayakumar Sivaperumal , Dinakaran Kannaiyan","doi":"10.1080/1023666X.2022.2158581","DOIUrl":"https://doi.org/10.1080/1023666X.2022.2158581","url":null,"abstract":"<div><p>We have developed conductive, lightweight, and porous composite of polyvinylidene difluoride by blending with synthesized conjugated terpolymer and graphene for conductive polymer composite applications. The new conjugated terpolymer designated as PEPy-TP is synthesized from 3,4-ethylenedioxythiophene, 1-pyrenecarboxzaldehyde, and heptaldehyde through friedel craft reaction. The synthesized terpolymer PEPy-TP have been blended with polyvinylidene difluoride and graphene nanosheets to form porous composite and has been characterized using XRD, TGA, TG-DSC, DTA, DTG, SEM, EDX, and Dielectric spectroscopy. The porous composite is comprised of varying weight percentages of (1, 3, and 5%) of GNS and 10 wt% PEPy-TP in PVDF. The thermal studies on the porous composites indicated that the decomposition occurred at a temperature around 270 and 470°C corresponds to the PEPy-TP and PVDF/PEPy-TP/GNS (1, 3, and 5%), respectively. The EDX spectrum of neat PEPy-TP polymer and their porous composites of PVDF/PEPy-TP/GNS (1, 3, and 5%) result clearly shows the presence of all elements, such as C, O, S, and F with an atomic weight percentage also. The PVDF/PEPy-TP/5% GNS porous composites having a tremendous electrical conductivity and the dielectric constant value is 56 at 1 MHz and their conductivity of this polymer porous composites value is determined to be 4.9 × 10<sup>−6</sup> S/cm at 100 kHz, respectively.</p></div>","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49870797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Research on temperature field during the hot pressing process of UHMWPE-based water-lubricated bearing 超高分子量聚乙烯基水润滑轴承热压过程温度场研究

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2023-01-01 DOI: 10.1080/1023666X.2022.2138131

Song Chen , Xiangbin Rong , Xiangcai Bao , Si Li , Chao Li , Zhuo Chen , Lei Wei

引用次数: 1

Performance appraisal of a cross-linked polymer prepared by gamma radiation for the removal of copper and its binding mechanism γ射线脱除铜交联聚合物的性能评价及其结合机理

IF 1.9 4区工程技术

International Journal of Polymer Analysis and Characterization Pub Date : 2023-01-01 DOI: 10.1080/1023666X.2022.2138136

Ayman Massoud , Hazem H. Mahmoud

{"title":"Performance appraisal of a cross-linked polymer prepared by gamma radiation for the removal of copper and its binding mechanism","authors":"Ayman Massoud , Hazem H. Mahmoud","doi":"10.1080/1023666X.2022.2138136","DOIUrl":"https://doi.org/10.1080/1023666X.2022.2138136","url":null,"abstract":"<div><p>The improvement of adsorbent materials with specific characteristics is very important in different environmental applications such as the removal of undesirable elements (wastewater treatment) or separation of elements or radionuclides and remediation of organic pollutants from their solutions. Herein, a cross-linked poly(acrylic acid-dimethyl aminoethyl methacrylate) was prepared by a copolymerization technique in the existence of N, Ǹ-methylene bis-acrylamide as a cross-linked agent using gamma irradiation (γ-rays) to induce the polymeric reaction at a minimum radiation dose of 30kGy. The optimization of polymer preparation was done using different parameters such as radiation dose, cross-linker amount, and monomer ratios. The batch mode was applied for the investigation of copper removal from their aqueous solutions using the synthesized polymer. Besides, the theoretical models were checked for experimental data to describe the nature of the adsorption process. Also, the confirmation of adsorption was evaluated using SEM, EDX, XRD, and FTIR to explain the adsorption processes. Furthermore, desorption prepared polymer was tested and the results exhibited that the HNO<sub>3</sub> is the best desorption agent. The reusability of the synthesized polymer also was examined for six cycles and the results confirmed that there is no remarkable change in the uptake of polymer.</p></div>","PeriodicalId":14236,"journal":{"name":"International Journal of Polymer Analysis and Characterization","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49905622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2